HBase-backup module's class "org.apache.hadoop.hbase.backup.impl.BackupManifest" FSDataInputStream is not close.

//代码占位符
if (subFile.getPath().getName().equals(MANIFEST_FILE_NAME)) {
  // load and set manifest field from file content
  FSDataInputStream in = fs.open(subFile.getPath());
  long len = subFile.getLen();
  byte[] pbBytes = new byte[(int) len];
  in.readFully(pbBytes);
  BackupProtos.BackupImage proto = null;
  try {
    proto = BackupProtos.BackupImage.parseFrom(pbBytes);
  } catch (Exception e) {
    throw new BackupException(e);
  }
  this.backupImage = BackupImage.fromProto(proto);
  LOG.debug("Loaded manifest instance from manifest file: "
      + BackupUtils.getPath(subFile.getPath()));
  return;
}